ReviewsAcme Screw Jack

Ellis Manufacturing Company 4x4 Screw Jack - Adjustable Support - Safe Load Capacity (15,000 lbs) - Painted Finish

SCREW JACK: The Ellis 4x4 Screw Jack is an extremely versatile product that will allow you to create an adjustable support of any length with your own 4x4 lumber. This product is designed to provide structural support in residential, commercial, trench, and collapse rescue shoring applications..
EASY TO USE: Designed to provide either vertical or horizontal support, this adjustable screw jack is functional, strong, and heavy duty. To adjust the height of the screw jack, simply turn the "U" shaped handle until you reach your desired height. Lock the Safety Screw in to set the height for long term support applications..
SAFE & SECURE: Built with high quality steel, this screw jack is designed to be long lasting and durable. This product is equipped with a safety lock, you can tighten the safety lock with an allen wrench once the final adjustment has been made..
SPECIFICATIONS: Safe Load Capacity: 15,000 lbs, Weight: 12 lbs, Minimum Overall Height: 14.25.

Material: SUS304 Stainless steel lead screw + copper nut.
Lead Screw Length: 400mm,Lead of thread: 8mm.
Lead Screw diameter: 8mm,Lead Screw spacing: 2mm.
Thread: Acme thread,Copper nut:with 4 holes for fixing to the machine ..
WHAT YOU GET: 2pcs 400mm Tr8x2 Lead Screw With T8 Brass Nut. 30-Days money back guarantee, 1-Year warranty, 24/7 friendly customer service..

Lift range: 9" to 31.5" (including 4.5" Drop leg) 18" travel height.Up to 5000 lbs towing capacity, do not exceed maximum weight.
Easy to use switch for raising and lowering trailer.
Water resistant motor and one piece plastic housing. Oversized adjustable Footpad provides excellent stability.
Ball screw design and Brake motor increases the Lift efficiency and reduces friction compared to the Acme screw.
Quick plug-in 7-way connector with plastic holder to keep connector in place when not in use.

Adjustable jaws for a strong grip or delicate for those small projects.
Oiled wooden jaws won't damage or slip on your work piece.
Feature a large diameter spindles for added strength and durability. Spindles and swivel nuts are made from Cold Drawn, carbon steel..
Acme thread for Rapid operation and years of hard use..
Hardwood handles are over-sized for comfort, Extra torque and reinforced with steel ferrules. The spiral pin used to secure the handles to the spindle is easy to remove for repair or replacement..
The jaws, made from quality hard Maple for a lifetime of use, are oiled to resist glue..
Feature a large diameter spindles for added strength and durability. Spindles and swivel nuts are made from cold drawn, carbon steel..
Acme thread for rapid operation and years of hard use..
Hardwood handles are over-sized for comfort, extra torque and reinforced with steel ferrules. The spiral pin used to secure the handles to the spindle is easy to remove for repair or replacement..
The jaws, made from quality hard maple for a lifetime of use, are oiled to resist glue..

[DOUBLE RAM] - The double-ram design plus extension screw top means you have 3 stages of lifting stroke, which has a better range of motion than a traditional single ram 6 ton bottle jack..
[BETTER RANGE OF MOTION] - The 6-1/4" starting height allows stubby bottle jack to fit most car clearance, and it has a double ram design with extension screw, which would fully extend up to 15-3/4"..
[SAFETY VAVLUE] - Each jack is tested for safety. The secure valve will automatically protect jack hydraulic system when overload. Equipped with a high-quality, glide-action pressure pump which is designed to lift with min effort..
[SCREW TOP] - Don't forget to screw the 2-3/8" tip up before using the 6 ton jack. It allows the hydraulic jack to be adjusted to accommodate desired work height while X-shaped top adds versatility. Thickened steel base increases stability and strength..
[PARAMETER] - Rated capacity: 6 ton (12,000 lbs) | Max height: 400mm/15.75" | Min height: 160mm/6.30" | Total lift: 9.45" | Adjustable height: 60mm/2.36" (extension screw top) | Net Weight: 4.9kg/10.8lbs.
[WARRANTY] - BAOSHISHAN provides ONE-year Warranty for the double ram jack. If there is any oil leakage, damage or malfunction of the bottle jacks, please do not hesitate to contact the after-....

hydraulic jack valve release screw knob comes in two sizes to either the jack screw with a 3/8" and 7/18" diameter valve release screw.
It is machined from a solid bar of 6061 aircraft quality aluminum, The knob also has a longer knurled section ,for extra grip..
It slides on over the release screw, turns 1/4 turn then secured in place with a set screw (included) from the end of the knob. You will need to use a 5/32 hex key (Allen wrench).
This particular part is designed for the Harbor Freight Hydraulic Bottle Jack used in the 6, 12 & 20 ton arbor presses but will work on any bottle jack with a 3/8 and 7/18" diameter valve release screw having a.
DO NOT USE WHEN LIFTING VEHICLES: ONLY TO BE USED ON HYDRAULIC PRESS APPLICATIONS!.

Features a unique base that supports the work piece and allows the clamp handle to clear the top of the work surface.
Four plate clutch for high clamping pressure, quick release.

Ideal for most Do-It-Yourself projects, light duty woodworking projects, and household clamping projects.
Zinc plated acme threaded screw and ductile iron clamp casting.

...stall and adjust and are designed for stabilizing and supporting beams and joists during construction and repairs.
BUILT TO LAST: Constructed of heavy-duty steel and red oxide finish, these foundation leveling jacks are built for strength, durability, and longevity with a resistance to rust and corrosion.
Each house screw jack post features a 3-inch diameter base post that is welded to the bottom plate and includes a screw jack pole and turning bar with a large top plate.
ISO9001 certified for strength and durability.
ADJUSTABLE FLOOR JACK POST: Use the turning bar and screw bolt to adjust the height of the basement post jack from 12 inches to 16 inches (30.5 to 40.7 cm) for different height requirements.
The jack extends telescopically for temporary leveling, bracing, and stabilizing your floor beams or roof trusses.
MAXIMUM WEIGHT CAPACITY: Min and max heights offer up to 9,700-pound (4,400 kg) weight capacity.
Install the base plate on a stable concrete slab under the area you wish to support.
Use the mounting holes on top and bottom plates to bolt jack to supporting bricks to ensure secure positioning and use the turning bar to extend the height of the house floor jack.
Always grease threads before use (grease not included).